<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>边框的复合写法</title>
  <style>
    /* border: border-width | border-style | border-color; 
    没有顺序要求
    border: 1px solid pink;
    */
    div {
      width: 300px;
      height: 200px;
      border: 1px solid pink;
    }
  </style>
</head>
<body>
  <div></div>
</body>
</html>